Air conditioner motor mounting assembly and air conditioner

Abstract

The application provides an air conditioner motor mounting assembly and an air conditioner, and relates to the technical field of air conditioners.The air conditioner motor mounting assembly comprises a bottom plate and a motor, the bottom of the motor is provided with a plurality of outwardly protruding fixing pieces, the middle part of the bottom plate is annularly provided with a plurality of rotating buckles, each rotating buckle is protruded on the surface of the bottom plate and has a clamping cavity for accommodating the fixing pieces, the two sides of the clamping cavity are provided with circumferentially opposite clamping openings and stop inner walls, the clamping openings are used for allowing the fixing pieces to pass through, and the stop inner walls are used for stopping the fixing pieces, the plurality of fixing pieces are one-to-one correspondingly rotated and buckled into the rotating buckles, and are detachably connected with the bottom plate.Compared with the prior art, the air conditioner motor mounting assembly provided by the embodiment of the application can realize the pre-fixing of the motor, simplifies the alignment steps of the motor, quickly and accurately aligns the motor, solves the problem of difficult alignment of the motor in the prior art, and greatly improves the assembly efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner motor mounting assembly and an air conditioner. BACKGROUND

[0002] At present, a DC motor driving centrifugal fan blades is usually mounted on the chassis of a ceiling air conditioner. The conventional motor is fixed by multiple screws. That is, the multiple screw holes on the motor are aligned with the multiple screw holes on the chassis, and then the screws are installed to fix them. However, the screw hole alignment is difficult, resulting in low efficiency of the production line in installing the DC motor. SUMMARY

[0003] The present application solves the problem of how to solve the installation alignment problem and improve the assembly efficiency.

[0004] To solve the above problems, the present application adopts the following technical solutions.

[0005] In one aspect, the present application provides an air conditioner motor mounting assembly, comprising a chassis and a motor, the bottom of the motor is provided with multiple outwardly extending fixing pieces, the middle part of the chassis is provided with multiple rotating buckles, each rotating buckle is protruded from the surface of the chassis and has a clamping cavity for accommodating the fixing pieces, the two sides of the clamping cavity have circumferentially opposite clamping openings and stop inner walls, the clamping openings are used for the fixing pieces to pass through, and the stop inner walls are used for stopping the fixing pieces, multiple fixing pieces are one-to-one correspondingly rotated and buckled into the rotating buckles, and are detachably connected with the chassis.

[0006] The air conditioner motor mounting assembly provided by the present application embodiment, by setting outwardly extending fixing pieces on the bottom of the motor, and simultaneously setting multiple rotating buckles in the middle part of the chassis, each rotating buckle is provided with a clamping cavity, the two sides of the clamping cavity have circumferentially opposite clamping openings and stop inner walls, the clamping openings are used for the fixing pieces to pass through, and the stop inner walls are used for stopping the fixing pieces, multiple fixing pieces are one-to-one correspondingly rotated and buckled into the rotating buckles, and are detachably connected with the chassis. In actual installation, the motor can be first placed in the middle part of the chassis, and the fixing pieces are located outside the clamping openings, then the motor is rotated so that the fixing pieces can be rotated and installed into the clamping openings, and the motor is continuously rotated until the fixing pieces abut against the inside of the stop, at which time the motor is completed pre-fixing, and then the fixing pieces and the chassis are connected by screws, which simplifies the motor alignment step. Compared with the prior art, the air conditioner motor mounting assembly provided by the present application embodiment can realize pre-fixing of the motor, simplify the motor alignment step, quickly and accurately align the motor, solve the problem of difficult motor alignment in the prior art, and greatly improve the assembly efficiency.

[0007] Further, the middle part of the base plate is further provided with elastic anti-falling buckles corresponding to at least one of the rotating buckles, which can be elastically deformed relative to the base plate, and the elastic anti-falling buckles are located on the side of the fixed sheet away from the stop inner wall, for limiting at least one of the fixed sheets to prevent the fixed sheet from falling out of the rotating buckle.

[0008] The air conditioner motor installation assembly provided by the embodiment of the application can be deformed during actual installation, so that the elastic anti-falling buckles do not hinder the rotation of the fixed sheet, and the elastic anti-falling buckles can be restored after the fixed sheet is rotated to the position, and are stopped at the edge of the fixed sheet, and cooperate with the stop surface to limit the fixed sheet in the horizontal direction to prevent the fixed sheet from falling out of the rotating buckle, and the rotating buckle itself can limit the fixed sheet in the vertical direction by cooperating with the surface of the base plate, so that the fixed sheet is accurately pre-fixed, the motor is ensured to be in the aligned state, and the assembly reliability of the motor is ensured.

[0009] Further, the middle part of the base plate is further provided with a plurality of accommodation openings corresponding to the rotating buckles.

[0010] The air conditioner motor installation assembly provided by the embodiment of the application can be deformed during actual installation, so that the elastic anti-falling buckles do not hinder the rotation of the fixed sheet, and the elastic anti-falling buckles can be restored after the fixed sheet is rotated to the position, and are stopped at the edge of the fixed sheet, and cooperate with the stop surface to limit the fixed sheet in the horizontal direction to prevent the fixed sheet from falling out of the rotating buckle, and the rotating buckle itself can limit the fixed sheet in the vertical direction by cooperating with the surface of the base plate, so that the fixed sheet is accurately pre-fixed, the motor is ensured to be in the aligned state, and the assembly reliability of the motor is ensured.

[0011] Further, the rotating buckle is further provided with a mounting hole, and a shock pad is assembled on the mounting hole, and the shock pad partially extends into the holding cavity and is used for gap cooperation with the fixed sheet.

[0012] The air conditioner motor installation assembly provided by the embodiment of the application can be deformed during actual installation, so that the elastic anti-falling buckles do not hinder the rotation of the fixed sheet, and the elastic anti-falling buckles can be restored after the fixed sheet is rotated to the position, and are stopped at the edge of the fixed sheet, and cooperate with the stop surface to limit the fixed sheet in the horizontal direction to prevent the fixed sheet from falling out of the rotating buckle, and the rotating buckle itself can limit the fixed sheet in the vertical direction by cooperating with the surface of the base plate, so that the fixed sheet is accurately pre-fixed, the motor is ensured to be in the aligned state, and the assembly reliability of the motor is ensured.

[0013] Further, the elastic anti-falling buckles are a plurality of elastic anti-falling buckles corresponding to the rotating buckles, and the rotating buckles are distributed along a first circular circumference, and the elastic anti-falling buckles are distributed along a second circular circumference, and the diameter of the first circular circumference is greater than the diameter of the second circular circumference, so that the elastic anti-falling buckles and the holding opening are radially misaligned.

[0014] The air conditioner motor mounting assembly provided by the embodiment of the present application arranges the elastic anti-falling buckle and the clamping opening in a staggered manner, so that the opening positions are staggered, and the structural strength of the opening is improved.

[0015] Further, the fixing sheet is further provided with an assembly hole between the rotating buckle and the motor, and a connecting piece is assembled in the assembly hole and detachably connected with the bottom plate.

[0016] The air conditioner motor mounting assembly provided by the embodiment of the present application realizes the detachable connection between the fixing sheet and the bottom plate through the connecting piece, is convenient to disassemble and assemble, and can reduce the number of connecting parts and simplify the connecting structure.

[0017] Further, the elastic anti-falling buckle comprises an elastic arm and an elastic protrusion, the bottom plate is provided with an elastic groove, the elastic arm and the elastic protrusion are accommodated in the elastic groove, one end of the elastic arm is connected to the end of the elastic groove away from the fixing sheet, and the elastic protrusion is arranged at the other end of the elastic arm and protrudes relative to the bottom plate and is used for limiting the fixing sheet.

[0018] The air conditioner motor mounting assembly provided by the embodiment of the present application can better realize the limiting of the fixing sheet through the arrangement of the elastic protrusion, the elasticity of the elastic protrusion in the vertical direction is ensured through the arrangement of the elastic arm, the elastic protrusion can protrude or retract the bottom plate adaptively when the fixing sheet is assembled and disassembled, and the convenience of assembly and disassembly is ensured.

[0019] Further, the elastic protrusion is provided with a stop face and a guide inclined surface on the two sides in the circumferential direction, the stop face is in clearance fit with the side face of the fixing sheet to limit the fixing sheet, and the guide inclined surface is inclinedly extended from the top side edge of the elastic protrusion to the elastic arm.

[0020] The air conditioner motor mounting assembly provided by the embodiment of the present application can realize the guiding of the fixing sheet through the arrangement of the guide inclined surface when the fixing sheet is assembled, the edge of the fixing sheet can slide along the guide inclined surface, the fixing sheet is guided, the elastic arm is subjected to downward pressure and deformed under the extrusion of the fixing sheet, and the fixing sheet can be smoothly assembled into the clamping opening.

[0021] Further, the inclination angle α of the guide inclined surface relative to the surface of the elastic arm is between 25° and 35°.

[0022] The air conditioner motor mounting assembly provided by the embodiment of the present application can reduce the assembly force required during assembly while ensuring that the elastic arm is subjected to sufficient elastic deformation by reasonably limiting the inclination angle of the guide inclined surface, and the fixing sheet is conveniently assembled.

[0023] Further, the extension length of the elastic arm is 5-10 times of the thickness of the elastic arm.

[0024] The air conditioner motor mounting assembly provided by the embodiment of the application limits the extension length of the elastic arm, which avoids the problems of warping and mold filling caused by the too long elastic arm, and avoids the problems of large shear effect and large bending degree of the root caused by the too short elastic arm, thereby avoiding damage in the assembly process.

[0025] Further, the protruding height of the elastic protrusion relative to the elastic arm is 0.8-2 times of the thickness of the elastic arm.

[0026] The air conditioner motor mounting assembly provided by the embodiment of the application limits the protruding height of the elastic protrusion, which can ensure the limiting effect on the fixing sheet and avoid damage caused by too large deformation of the elastic arm.

[0027] Further, the width of the elastic arm is between 8-10 mm.

[0028] The air conditioner motor mounting assembly provided by the embodiment of the application limits the width of the elastic arm, which can ensure the structural strength of the elastic arm and avoid difficulty in pressing down caused by too wide elastic arm.

[0029] Further, the yield stress σ of the elastic arm satisfies the following relationship:

[0030] εmp=σ / Es;

[0031] Wherein, εmp is the allowable strain of the elastic arm, and Es is the secant modulus of the elastic arm.

[0032] Further, the clamping force W and the deflection force P of the fixing sheet on the elastic protrusion satisfy the following relationship:

[0033] W=P·(μ+tanα 2 ) / (1-μtanα 2 );

[0034] P=(h 2 Esεmp) / (6L);

[0035] Wherein, μ is the friction coefficient, α is the inclination angle of the guide inclined surface relative to the surface of the elastic arm, εmp is the allowable strain of the elastic arm, Es is the secant modulus of the elastic arm, and h is the thickness of the elastic arm.

[0036] Further, the rotating buckle is further provided with a guide flange, the guide flange is located at the top side of the clamping opening and extends outwardly and inclines away from the bottom disc.

[0037] The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0038] Further, the motor is provided with the wire extending outward on the end face away from the bottom plate.

[0039] The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the motor is provided with the wire extending outward on the end face away from the bottom plate, after the actual wall installation is completed, the bottom plate is located at the top, at this time, the wire port of the wire of the motor is located at the lowest end of the motor, water vapor condensation is avoided from entering the motor along the wire, and the reliability is improved.

[0040] In another aspect, the application provides an air conditioner comprising the air conditioner motor mounting assembly. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0042] Figure 2 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient. Figure 1 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0043] Figure 3 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient. Figure 2 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0044] Figure 4 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0045] Figure 5 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient. Figure 4 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0046] Figure 6 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0047] Figure 7 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0048] Figure 8 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0049] Figure 9 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0050] Figure 10 The air conditioner motor mounting assembly provided by the embodiment of the application has the advantages that the guiding fold is arranged, the guiding effect is achieved during the process that the fixing sheet is loaded into the clamping opening, the fixing sheet is conveniently and accurately loaded into the clamping opening, the fixing sheet can be smoothly screwed into the clamping opening, and installation and dismounting are more convenient.

[0051] Figure 11 The air conditioner motor mounting assembly provided by the embodiment of the present application has no vibration noise spectrum of the damping pad.

[0052] Explanation of reference signs:

[0053] 100 - air conditioner motor mounting assembly; 110 - base plate; 111 - mounting boss; 113 - clearance opening; 130 - motor; 131 - fixing piece; 133 - assembly hole; 135 - connecting piece; 137 - wire; 150 - rotating buckle; 151 - clamping cavity; 153 - clamping opening; 155 - stop inner wall; 157 - mounting hole; 159 - guide flange; 170 - elastic anti-falling buckle; 171 - elastic arm; 173 - elastic block; 175 - elastic groove; 177 - stop surface; 179 - guide inclined surface; 190 - damping pad; 200 - air conditioner; 210 - enclosure. DETAILED DESCRIPTION

[0054] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings.

[0055] First embodiment

[0056] Reference Figures 1 to 3 The present embodiment provides an air conditioner motor mounting assembly 100, which can realize pre-fixing of the motor 130, simplifies the alignment steps of the motor 130, quickly and accurately aligns the motor 130, solves the problem of difficult alignment of the motor 130 in the prior art, and greatly improves the assembly efficiency.

[0057] The air conditioner motor mounting assembly 100 provided by the present embodiment includes a base plate 110 and a motor 130. The bottom of the motor 130 is provided with a plurality of outwardly protruding fixing pieces 131. The middle part of the base plate 110 is annularly provided with a plurality of rotating buckles 150. Each rotating buckle 150 is protrudingly arranged on the surface of the base plate 110 and has a clamping cavity 151 for accommodating the fixing piece 131. The clamping cavity 151 has circumferentially opposite clamping openings 153 and stop inner walls 155. The clamping openings 153 are used for allowing the fixing piece 131 to pass through, and the stop inner walls 155 are used for stopping the fixing piece 131. The plurality of fixing pieces 131 are one-to-one correspondingly rotated and buckled into the rotating buckles 150 and are detachably connected with the base plate 110.

[0058] It should be noted that the air conditioner motor mounting assembly 100 in the embodiment is suitable for the air conditioner 200, which can be a ceiling machine. The motor 130 can be a direct current motor 130, and other internal structures of the ceiling machine can refer to the prior art. In actual installation of the motor 130, the motor 130 can be first placed in the middle of the chassis 110, and the fixed sheet 131 is located outside the clamping opening 153, and then the motor 130 is rotated so that the fixed sheet 131 can be rotated and fitted into the clamping opening 153. The motor 130 is continuously rotated until the fixed sheet 131 abuts against the inner stop, at which time the motor 130 is pre-fixed. In this case, the fixed sheet 131 and the chassis 110 are fixed by screws, which simplifies the alignment step of the motor 130. Compared with the prior art, the air conditioner motor mounting assembly 100 provided by the embodiment of the present application can realize pre-fixing of the motor 130, simplify the alignment step of the motor 130, quickly and accurately align the motor 130, solve the problem of difficult alignment of the motor 130 in the prior art, and thus greatly improve the assembly efficiency.

[0059] In the embodiment, the middle of the chassis 110 is provided with a mounting boss 111, and a plurality of rotating buckles 150 are arranged on the mounting boss 111. It should be noted that the rotating buckles 150 in the embodiment can be four, which are uniformly distributed on the mounting boss 111. Meanwhile, the fixed sheets 131 on the motor 130 can also be four, which are dispersed and arranged in a cross shape at the bottom of the motor 130 and extend outward.

[0060] In the embodiment, the middle of the chassis 110 is further provided with an elastic anti-dropping buckle 170, which is arranged corresponding to at least one of the rotating buckles 150 and can elastically deform relative to the chassis 110. The elastic anti-dropping buckle 170 is located on the side of the fixed sheet 131 away from the inner stop wall 155, and is used for limiting at least one fixed sheet 131 to prevent the fixed sheet 131 from being pulled out of the rotating buckle 150. Specifically, the elastic anti-dropping buckle 170 is also arranged on the mounting boss 111. By arranging the elastic anti-dropping buckle 170, in actual installation, the elastic anti-dropping buckle 170 can deform, thereby avoiding hindering the rotation of the fixed sheet 131. After the fixed sheet 131 is rotated in place, the elastic anti-dropping buckle 170 can recover and stop at the edge of the fixed sheet 131, limiting the fixed sheet 131 in the horizontal direction together with the stop surface 177, preventing the fixed sheet 131 from being pulled out of the rotating buckle 150. The rotating buckle 150 itself can limit the fixed sheet 131 in the vertical direction together with the surface of the chassis 110, realizing accurate pre-fixing of the fixed sheet 131, further ensuring that the motor 130 is in an aligned state, and ensuring the assembly reliability of the motor 130.

[0061] In the embodiment, the middle part of the chassis 110 is also provided with a plurality of accommodation openings 113, which correspond to the plurality of rotating buckles 150 and are connected to the buckle cavities 151. By providing a plurality of accommodation openings 113, on the one hand, the chassis 110 can be partially hollowed out to save materials, facilitate the use of stamping or injection molding to form the rotating buckle 150, and facilitate demolding. On the other hand, the space of the buckle cavity 151 can be expanded, and the fixing piece 131 has enough deformation space in the buckle cavity 151, thereby facilitating the quick loading of the fixing piece 131 into the buckle cavity 151. In addition, the accommodation opening 113 can also expose the fixing piece 131 from the bottom, facilitating the inspection of the fixing piece 131.

[0062] For reference Figure 4 and Figure 5 In the embodiment, an installation hole 157 is also formed in each rotating buckle 150, and a damping pad 190 is assembled in the installation hole 157. The damping pad 190 partially extends into the buckle cavity 151 and is used in gap cooperation with the fixing piece 131. Specifically, the damping pad can be a rubber damping pad 190, for example, a nitrile rubber with a thickness of 2 mm and a Shore hardness of 35 degrees. The installation hole 157 is located at the top of the rotating buckle 150 and corresponds to the accommodation opening 113 at the bottom. When installing the damping pad 190, the damping pad 190 can be loaded into the installation hole 157 from the accommodation opening 113, facilitating installation. Moreover, by providing the installation hole 157 and loading the damping pad 190, the damping pad 190 has a damping and buffering effect, which can effectively reduce vibration noise.

[0063] In the embodiment, the top side of the damping pad 190 is provided with a buckle protrusion, which can be fitted into the installation hole 157, thereby completing the installation of the damping pad 190. Moreover, the center of the damping pad 190 is also provided with a hollow hole, which can reduce the material usage of the damping pad 190. Of course, the shape of the damping pad 190 is not described in detail here, but any structure that extends into the buckle cavity 151 and can achieve a damping and buffering effect is within the scope of the present application.

[0064] It should be noted that, for reference Figure 11 For the vibration noise spectrum without the damping pad 190, for reference Figure 10 For the vibration noise spectrum with the damping pad 190, it can be seen that the damping pad 190 provided on the rotating buckle 150 has a good damping and buffering effect. Through fixed bandwidth analysis, the noise of the structure with the damping pad 190 is significantly better than that of the structure without the damping pad 190.

[0065] For reference Figures 3 to 7It is worth noting that after the fixing piece 131 is installed in place, the elastic anti-dropping buckle 170 and the rotating buckle 150 form a clamping limiting structure, which limits the fixing piece 131 from the vertical direction and the horizontal direction. Among them, the elastic anti-dropping buckle 170 and the rotating buckle 150 are both left with a certain assembly allowance with the fixing piece 131, so that the rotating buckle 150 and the fixing piece 131, and the elastic anti-dropping buckle 170 and the fixing piece 131 both have a certain assembly gap, which is between 0.1mm-0.3mm, and preferably can be 0.2mm, to ensure that the fixing piece 131 can be clamped and smoothly turned in.

[0066] In the present embodiment, the elastic anti-dropping buckle 170 is a plurality of, and the plurality of elastic anti-dropping buckles 170 are arranged one-to-one with the plurality of rotating buckles 150, and the plurality of rotating buckles 150 are distributed along the first circumferential ring, and the plurality of elastic anti-dropping buckles 170 are distributed along the second circumferential ring, and the diameter of the first circumferential is greater than that of the second circumferential, so that the elastic anti-dropping buckle 170 and the clamping opening 153 are arranged in radial offset. Preferably, the number of elastic anti-dropping buckles 170 and rotating buckles 150 can be consistent, for example, both are 4, and the 4 elastic anti-dropping buckles 170 limit the 4 fixing pieces 131 respectively. Of course, the number of elastic anti-dropping buckles 170 here can also be different from the number of rotating buckles 150, and the number and position can be adjusted according to the actual situation. In addition, the elastic anti-dropping buckle 170 and the clamping opening 153 are arranged in offset, so that the opening positions are offset, that is, the elastic anti-dropping buckle 170 is arranged in offset with the clamping opening 153 and the relief opening 113, which improves the structural strength of the opening.

[0067] In the present embodiment, the fixing piece 131 is also provided with an assembly hole 133, which is located between the rotating buckle 150 and the motor 130, and the connecting piece 135 is assembled in the assembly hole 133, and the connecting piece 135 is detachably connected with the bottom plate 110. Specifically, the connecting piece 135 is a screw, and a screw hole is formed on the bottom plate 110, and the fixing piece 131 and the bottom plate 110 can be fixed by a single screw. The detachable connection between the fixing piece 131 and the bottom plate 110 is realized by the connecting piece 135, which is convenient to disassemble and assemble, and can reduce the number of connecting parts and simplify the connection structure.

[0068] The elastic anti-off buckle 170 includes an elastic arm 171 and an elastic block 173, and the bottom disc 110 is provided with an elastic groove 175 in which the elastic arm 171 and the elastic block 173 are accommodated. One end of the elastic arm 171 is connected to one end of the elastic groove 175 away from the fixed sheet 131, and the elastic block 173 is arranged at the other end of the elastic arm 171 and protrudes relative to the bottom disc 110, and is used for limiting the fixed sheet 131. Specifically, the size of the elastic groove 175 is slightly larger than the size of the elastic anti-off buckle 170, so that the elastic arm 171 of the elastic anti-off buckle 170 can be completely accommodated in the elastic groove 175, and the elastic block 173 partially protrudes outward. Preferably, the upper surface of the elastic arm 171 can be flush with the surface of the bottom disc 110, and the elastic block 173 protrudes from the surface of the bottom disc 110 to limit the fixed sheet 131. By arranging the elastic block 173, the fixed sheet 131 can be better limited, and the arrangement of the elastic arm 171 also ensures the elasticity of the elastic block 173 in the vertical direction, and the elastic block 173 can deform in the vertical direction when the elastic arm 171 is assembled and disassembled, so that the elastic block 173 can protrude or retract from the bottom disc 110 adaptively, and the elastic block 173 can be conveniently assembled and disassembled.

[0069] In the embodiment, the elastic block 173 is provided with a stop surface 177 and a guide inclined surface 179 on both sides in the circumferential direction. The stop surface 177 is in gap cooperation with the side surface of the fixed sheet 131 to limit the fixed sheet 131, and the guide inclined surface 179 extends from the top side edge of the elastic block 173 to the elastic arm 171. Specifically, the guide inclined surface 179 extends downward from the top side edge of the elastic block 173 in a direction away from the stop surface 177. By arranging the guide inclined surface 179, the edge of the fixed sheet 131 can slide along the guide inclined surface 179 when the fixed sheet 131 is assembled, and the fixed sheet 131 is guided, so that the elastic arm 171 is pressed downward and deformed under the extrusion of the fixed sheet 131, and the fixed sheet 131 can be smoothly assembled into the clamping opening 153.

[0070] In the embodiment, the inclination angle α of the guide inclined surface 179 relative to the surface of the elastic arm 171 is between 25° and 35°. Specifically, the inclination angle α of the guide inclined surface 179 relative to the surface of the elastic arm 171 refers to the inclination angle of the guide inclined surface 179 relative to the upper surface of the elastic arm 171 in the undeformed state of the elastic anti-off buckle 170, which can represent the guide-in angle of the guide inclined surface 179. Preferably, the inclination angle α can be 30°. By reasonably limiting the inclination angle of the guide inclined surface 179, the assembly force required during assembly can be reduced while ensuring that the elastic arm 171 is deformed elastically, and the fixed sheet 131 can be conveniently assembled.

[0071] It should be noted that the value of the inclination angle a of the guide slope 179 depends on the material friction coefficient and the actual rigidity of the elastic anti-falling buckle 170, and the reasonable angle is between 25-35°. When the friction coefficient is known, the calculation formula of the limit angle is a = tan -1 (1 / u). The friction coefficients of several common plastics are as follows: the friction coefficient of PP is 0.25-0.3; the friction coefficient of PC is 0.45-0.55; the friction coefficient of ABS is 0.55-0.65; the friction coefficient of PE is 0.2-0.25; when the material is PC, the limit angle can be obtained from the table as 1-1.15°.

[0072] In the embodiment, the extension length of the elastic arm 171 is 5-10 times the thickness of the elastic arm 171. In order to make the elastic arm 171 have sufficient resilience and not be broken, and have sufficient anti-falling effect, the extension length of the elastic arm 171 is at least 5 times the thickness of the arm in design, and preferably can be 10 times the thickness of the arm. If the wall thickness is greater than 10 times, warping and filling problems may occur. If the wall thickness is less than 5 times, the arm will bear a large shear effect and a large bending degree at the root of the arm, and the possibility of damage during assembly is large. The extension length of the elastic arm 171 refers to the length of the elastic arm 171 in the length direction thereof, and the thickness of the elastic arm 171 refers to the width of the elastic arm 171 in the vertical direction. By reasonably limiting the extension length of the elastic arm 171, on the one hand, warping and filling problems caused by the elastic arm 171 being too long are avoided, and on the other hand, the elastic arm 171 is also avoided from being too short to bear a large shear effect and a large bending degree at the root thereof during deformation, thereby avoiding damage during assembly.

[0073] In the embodiment, the protruding height of the elastic block 173 relative to the elastic arm 171 is 0.8-2 times the thickness of the elastic arm 171. Specifically, the protruding height of the elastic block 173 refers to the vertical distance between the top surface of the elastic block 173 and the top surface of the elastic arm 171, and the protruding height of the elastic block 173 determines the deflection degree of the elastic block. When the extension length of the elastic arm 171 is 5 times the thickness, the protruding height of the elastic block 173 should be slightly less than the thickness of the elastic arm 171. When the extension length of the elastic arm 171 is 10 times the thickness, the protruding height of the elastic block 173 is equal to 2 times the thickness of the elastic arm 171, and in the embodiment, the protruding height of the elastic block 173 is preferably equal to 2 times the thickness of the elastic arm 171. By reasonably limiting the protruding height of the elastic block 173, the limiting effect on the fixing piece 131 can be ensured while avoiding damage caused by the elastic arm 171 having too large a deformation amount.

[0074] In the embodiment, the width of the elastic arm 171 is between 8-10mm. Specifically, the width of the elastic arm 171 refers to the width of the elastic arm 171 in the direction perpendicular to the extending direction, and preferably, the width of the elastic arm 171 can be 9mm. By reasonably limiting the width of the elastic arm 171, the structural strength of the elastic arm 171 can be ensured, and meanwhile, the difficulty of pressing down the elastic arm 171 due to the excessive width can be avoided.

[0075] In the embodiment, the rotating buckle 150 is further provided with a guide flange 159, which is located at the top side of the clamping opening 153 and extends outwardly and inclines away from the bottom disc 110. By arranging the guide flange 159, the guide effect can be achieved during the process of arranging the fixing sheet 131 into the clamping opening 153, so that the fixing sheet 131 can be accurately arranged into the clamping opening 153, and the fixing sheet 131 can be smoothly rotated into the clamping opening 153, and the installation and disassembly are more convenient.

[0076] In the embodiment, the motor 130 is provided with a wire 137 extending outwardly from the end surface of the motor 130 away from the bottom disc 110. Specifically, the end surface of the motor 130 is provided with a wire outlet, and the wire 137 extends from the wire outlet. After the actual wall installation is completed, the bottom disc 110 is located at the top, and at this time, the wire outlet of the wire 137 of the motor 130 is located at the lowest end of the motor 130, so that the water vapor condensation cannot enter the interior of the motor 130 along the wire 137, and the reliability is improved.

[0077] In combination with Figure 8 , the material selection and stress of the elastic anti-dropping buckle 170 are further analyzed below. It should be noted that the rotating buckle 150 and the elastic anti-dropping buckle 170 are integrally arranged on the bottom disc 110 in the embodiment, and therefore, the materials of the rotating buckle 150, the elastic anti-dropping buckle 170 and the bottom disc 110 are consistent.

[0078] In the embodiment, the yield stress σ of the elastic arm 171 satisfies the following relationship:

[0079] εmp=σ / Es;

[0080] Wherein, εmp is the allowable strain of the elastic arm 171, and Es is the secant modulus of the elastic arm 171.

[0081] Specifically, according to the Hooke's law: ε=σ / E, and because the elastic modulus is replaced by the secant modulus, εmp=σ / Es, where εmp is the allowable strain, σ is the yield stress, and Es is the secant modulus. Since the buckle needs to be disassembled, the actual value is taken as 0.5 times the allowable strain to prevent the buckle from being damaged.

[0082] The common secant modulus (ES) of plastics are as follows: ABS, strain 1%-2%, secant modulus 4285Mpa-3000Mpa; PC, strain 1%-3%, secant modulus 5600Mpa-3000Mpa. The common instantaneous allowable strain (εmp) of plastics are as follows: PE, 4-8; PP, 4-6; ABS, 2-3; PC, 4-6.

[0083] In this embodiment, the locking force W and the flexural force P applied by the fixing piece 131 to the elastic protrusion 173 satisfy the following relationship:

[0084] W = P·(μ + tanα) 2 ) / (1-μtanα 2 );

[0085] P=(h 2 Esεmp) / (6L);

[0086] Where μ is the coefficient of friction, α is the tilt angle of the guide slope 179 relative to the surface of the elastic arm 171, εmp is the allowable strain of the elastic arm 171, Es is the secant modulus of the elastic arm 171, and h is the thickness of the elastic arm 171.

[0087] Specifically, the force in the same direction as the assembly is the locking force W, and the bending force P is the vertical force applied to the elastic protrusion 173 during locking. According to the above formula and the aforementioned parameters, P = 1.8 N can be calculated, and the locking force W can also be calculated at the same time. It can be seen that by using PC material, the required locking force W and bending force P are both smaller, which saves more effort.

[0088] The installation process of the air conditioner motor mounting assembly 100 provided in this embodiment is as follows: First, the shock-absorbing pad 190 is inserted into the rotating clip 150 through the clearance opening 113 and assembled into the mounting hole 157, completing the installation of the shock-absorbing pad 190. Then, the motor 130 is placed entirely on the chassis 110, with the fixing plate 131 of the motor 130 positioned between two adjacent rotating clips 150, as shown. Figure 1 As shown. Then, the motor 130 is rotated clockwise. At this time, the elastic anti-detachment buckle 170 undergoes elastic deformation under the pressure of the fixing piece 131, allowing the fixing piece 131 to smoothly rotate from the holding opening 153 into the rotating buckle 150. After the motor 130 rotates to its position, the fixing piece 131 abuts against the inner wall 155 of the stop, at which point rotation stops, and the elastic anti-detachment buckle 170 rebounds without force, thus limiting the fixing piece 131 and completely fixing the motor 130, completing the pre-fixing of the motor 130. At this time, the mounting hole 133 on the fixing piece 131 corresponds to the screw on the chassis 110, and can be fixed using the connecting piece 135, such as... Figure 6As shown, finally plug in the motor 130 plug, complete installation. And when disassembling the motor 130, just first disassemble the connecting piece 135, then pull out the motor 130 plug, then press the elastic anti-off buckle 170 down, make it elastic deformation, then rotate the motor 130 counterclockwise, at this time the fixed sheet 131 lost the elastic anti-off buckle 170 limit, can get out of the rotating buckle 150, after the fixed sheet 131 completely get out of the rotating buckle 150, the elastic anti-off buckle 170 will restore to its original position, at this time can directly take out the motor 130.

[0089] In summary, the embodiment provides an air conditioner motor mounting assembly 100, by setting the fixed sheet 131 outwardly at the bottom of the motor 130, and a plurality of rotating buckles 150 are arranged in the middle of the bottom plate 110, each rotating buckle 150 is provided with a clamping cavity 151, the clamping cavity 151 has a clamping opening 153 and a stop inner wall 155 opposite in the circumferential direction on both sides, the clamping opening 153 is used for the fixed sheet 131 to pass through, and the stop inner wall 155 is used for stopping the fixed sheet 131, a plurality of fixed sheets 131 are correspondingly rotated and buckled into the rotating buckles 150, and are detachably connected with the bottom plate 110. In actual installation, the motor 130 can be first placed in the middle of the bottom plate 110, and the fixed sheet 131 is located outside the clamping opening 153, then the motor 130 is rotated, so that the fixed sheet 131 can be rotated and installed in the clamping opening 153, and the motor 130 is continuously rotated until the fixed sheet 131 abuts against the inside of the stop, at this time the motor 130 is completed pre-fixing, and in this case the fixed sheet 131 and the bottom plate 110 are fixed by screws, which simplifies the alignment step of the motor 130. Compared with the prior art, the air conditioner motor mounting assembly 100 provided by the embodiment of the present application can realize pre-fixing of the motor 130, simplify the alignment step of the motor 130, quickly and accurately align the motor 130, solve the problem of difficult alignment of the motor 130 in the prior art, and greatly improve the assembly efficiency.

[0090] Second embodiment

[0091] Reference Figure 9 The embodiment provides an air conditioner 200, which comprises an air conditioner motor mounting assembly 100, the basic structure and principle of the air conditioner motor mounting assembly 100 are same as those of the first embodiment, and the technical effects are same, for brief description, the part not mentioned in the embodiment can refer to the corresponding content in the first embodiment.

[0092] The embodiment provides an air conditioner 200, which comprises a centrifugal fan (not shown in the figure), a surrounding shell 210 and an air conditioner motor mounting assembly 100, the air conditioner motor mounting assembly 100 comprising a bottom plate 110 and a motor 130, the bottom of the motor 130 being provided with a plurality of outwardly protruding fixing pieces 131, the middle part of the bottom plate 110 being annularly provided with a plurality of rotating buckles 150, each rotating buckle 150 being convexly arranged on the surface of the bottom plate 110 and having a clamping cavity 151 for accommodating the fixing pieces 131, the clamping cavity 151 being provided with circumferentially opposite clamping openings 153 and stop inner walls 155 on two sides, the clamping openings 153 being used for allowing the fixing pieces 131 to pass through, and the stop inner walls 155 being used for stopping the fixing pieces 131, the plurality of fixing pieces 131 being one-to-one correspondingly rotated and buckled into the rotating buckles 150 and being detachably connected with the bottom plate 110. The surrounding shell 210 is arranged at the edge of the bottom plate 110 and is annularly arranged to form an inner cavity, the centrifugal fan is arranged in the inner cavity and is drivingly connected with the motor 130.

[0093] The air conditioner 200 in the embodiment can be a ceiling machine air conditioner, and the basic structure, principle and generated technical effects thereof can refer to the existing ceiling machine, and thus will not be introduced here.

[0094] Although the present application is disclosed as above, the present application is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the present application, can make various changes and modifications, and thus the protection scope of the present application should be subject to the scope defined by the claims.

Claims

1. An air conditioner motor mounting assembly, characterized in that, The device includes a chassis (110) and a motor (130). The bottom of the motor (130) is provided with a plurality of outwardly extending fixing pieces (131). The middle part of the chassis (110) is provided with a plurality of rotating buckles (150). Each rotating buckle (150) protrudes from the surface of the chassis (110) and has a retaining cavity (151) for accommodating the fixing pieces (131). The retaining cavity (151) has circumferentially opposite retaining openings (153) and a stop inner wall (155) on both sides. The retaining openings (153) are used for the fixing pieces (131) to pass through, and the stop inner wall (155) is used to stop the fixing pieces (131). The plurality of fixing pieces (131) are rotated and snapped into the rotating buckles (150) one by one and are detachably connected to the chassis (110). The chassis (110) is also provided with an elastic anti-detachment buckle (170) in the middle. The elastic anti-detachment buckle (170) is provided corresponding to at least one of the rotating buckles (150) and can elastically deform relative to the chassis (110). The elastic anti-detachment buckle (170) is located on the side of the fixing piece (131) away from the inner wall of the stop (155) and is used to limit at least one of the fixing pieces (131) to prevent the fixing piece (131) from falling out of the rotating buckle (150). There are multiple elastic anti-detachment buckles (170), and each of the multiple elastic anti-detachment buckles (170) is correspondingly arranged with a multiple of the multiple rotating buckles (150). The multiple rotating buckles (150) are distributed in a ring along the first circumference, and the multiple elastic anti-detachment buckles (170) are distributed in a ring along the second circumference. The diameter of the first circumference is larger than the diameter of the second circumference, so that the elastic anti-detachment buckles (170) and the holding opening (153) are radially misaligned. The fixing plate (131) is also provided with an assembly hole (133), in which a connector (135) is assembled, and the connector (135) is detachably connected to the chassis (110).

2. The air conditioner motor mounting assembly according to claim 1, characterized in that, Each of the rotating buckles (150) is also provided with a mounting hole (157), on which a shock-absorbing pad (190) is fitted. The shock-absorbing pad (190) extends into the holding cavity (151) and is used to cooperate with the fixing piece (131) with a clearance.

3. The air conditioner motor mounting assembly according to claim 1, characterized in that, The elastic anti-detachment buckle (170) includes an elastic arm (171) and an elastic protrusion (173). An elastic groove (175) is provided on the chassis (110). The elastic arm (171) and the elastic protrusion (173) are both accommodated in the elastic groove (175). One end of the elastic arm (171) is connected to the end of the elastic groove (175) away from the fixing piece (131). The elastic protrusion (173) is provided at the other end of the elastic arm (171) and protrudes relative to the chassis (110) to limit the fixing piece (131).

4. The air conditioner motor mounting assembly according to claim 3, characterized in that, The elastic protrusion (173) is provided with a stop surface (177) and a guide slope (179) on both sides along the circumferential direction. The stop surface (177) is in clearance fit with the side of the fixing piece (131) to limit the fixing piece (131). The guide slope (179) extends obliquely from the top edge of the elastic protrusion (173) to the elastic arm (171).

5. The air conditioner motor mounting assembly according to claim 4, characterized in that, The angle of inclination α of the guide ramp (179) relative to the surface of the elastic arm (171) is between 25° and 35°.

6. The air conditioner motor mounting assembly according to claim 4, characterized in that, The clamping force W and the flexural force P applied by the fixing plate (131) to the elastic protrusion (173) satisfy the following relationship: W=P∙(μ+tanα 2 ) / (1-mtana 2 ); P=(h 2 Esεmp) / (6L); Where μ is the coefficient of friction, α is the inclination angle of the guide slope (179) relative to the surface of the elastic arm (171), εmp is the allowable strain of the elastic arm (171), Es is the secant modulus of the elastic arm (171), and h is the thickness of the elastic arm (171).

7. The air conditioner motor mounting assembly according to claim 3, characterized in that, The extension length of the elastic arm (171) is 5-10 times the thickness of the elastic arm (171).

8. The air conditioner motor mounting assembly according to claim 3, characterized in that, The height of the elastic bump (173) relative to the elastic arm (171) is 0.8-2 times the thickness of the elastic arm (171).

9. The air conditioner motor mounting assembly according to claim 3, characterized in that, The width of the elastic arm (171) is between 8 and 10 mm.

10. The air conditioner motor mounting assembly according to claim 3, characterized in that, The yield stress σ of the elastic arm (171) satisfies the following relationship: εmp=σ / Es; Wherein, εmp is the allowable strain of the elastic arm (171), and Es is the secant modulus of the elastic arm (171).

11. The air conditioner motor mounting assembly according to claim 1, characterized in that, The mounting hole (133) is located between the rotating buckle (150) and the motor (130).

12. The air conditioner motor mounting assembly according to claim 1, characterized in that, The rotating buckle (150) is also provided with a guide flange (159), which is located on the top side of the holding opening (153) and extends outward at an angle away from the chassis (110).

13. The air conditioner motor mounting assembly according to claim 1, characterized in that, The motor (130) has an outwardly extending wire (137) on the end face away from the chassis (110).

14. An air conditioner (200), characterized in that, Includes the air conditioner motor mounting assembly as described in any one of claims 1-13.

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